CN109947685B - Signal enhancement device and OpenPOWER server - Google Patents
Signal enhancement device and OpenPOWER server Download PDFInfo
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Abstract
The invention discloses a signal enhancement device and an OpenPOWER server, wherein a signal enhancement module is detachably connected with the OpenPOWER server through a first connector and a second connector, wherein the first connector is fixedly arranged between a group of signal sending ends and signal receiving ends of a mainboard of the OpenPOWER server, the second connector is detachably connected with the first connector, the first connector can be used as a device for conducting the signal sending ends and the signal receiving ends when not connected with the second connector, after the first connector is connected with the second connector, the signal enhancement module can be connected between the signal sending ends and the signal receiving ends, signal enhancement is carried out on signals to be transmitted, and operation and maintenance personnel can flexibly select the number of the second connectors to control the signals on a transmission line of the mainboard of the OpenPOWER server to be enhanced to different degrees.
Description
Technical Field
The invention relates to the technical field of servers, in particular to a signal enhancement device and an OpenPOWER server.
Background
With the rapid development of server technology, servers are now widely used in various industries. According to moore's law, the performance of server CPUs is increasing rapidly, and the high-speed bus rate on CPUs is increasing from 6.4G a few years ago to 25G currently on OpenPOWER processors (OpenCAPI interface). Through the OpenCAPI interface, the external accelerator can directly access the memory of the OpenPOWER processor, and the OpenCAPI interface has obvious advantages in bandwidth and time delay compared with the traditional interface technology. By means of the open bus, the OpenPOWER processor can be connected with an accelerator, a consistency network controller, a high-level memory, a consistency storage controller and the like at high speed, and the overall performance is greatly improved.
However, as Signal rates increase, Signal Integrity (Signal Integrity) becomes a significant challenge in OpenPOWER server design. According to the physical characteristics of the PCB transmission line, along with the rising of the signal rate, the loss of the signal also rises synchronously, and when the loss of the transmission line on the PCB reaches a boundary value, the integrity of the signal cannot be ensured after the signal passes through the transmission line. To solve this problem, the existing solution is to reduce signal attenuation by selecting a low-loss PCB material through simulation according to the trace length of transmission lines on the PCB to ensure signal integrity.
However, the use of low-loss PCB material inevitably results in a significant increase in the cost of the OpenPOWER server. Even if the cost is not considered, such PCB materials may not completely offset signal loss, and as the length of the transmission line increases, may also cause problems that do not satisfy signal integrity.
Therefore, how to ensure signal integrity is a technical problem which needs to be solved urgently in the design process of the OpenPOWER server.
Disclosure of Invention
The invention aims to provide a signal enhancement device and an OpenPOWER server, which are used for reducing the signal loss of the OpenPower server and ensuring the integrity of signals.
In order to solve the above technical problem, the present invention provides a signal enhancement device, which is applied to an OpenPOWER server and includes a first connector, a second connector detachably connected to the first connector, and a signal enhancement module connected to the second connector;
the first connector is fixedly arranged between a group of signal transmitting ends and signal receiving ends of the OpenPOWER server mainboard and used for conducting the signal transmitting ends and the signal receiving ends when the second connector is not accessed, and cutting off the connection between the signal transmitting ends and the signal receiving ends and accessing the signal enhancement module between the signal transmitting ends and the signal receiving ends when the second connector is accessed.
Optionally, the first connector specifically includes a first signal end connected to the signal sending end, a second signal end connected to the signal receiving end, a first switch with a fixed end connected to the first signal end, and a second switch with a fixed end connected to the second signal end; when the first connector is not connected with the second connector, the movable end of the first switch is connected with the movable end of the second switch through a signal line;
correspondingly, the second connector specifically comprises a third signal end and a fourth signal end which are respectively connected with the signal enhancement module; when the first connector is connected to the second connector, the third signal end is connected to the movable end of the first switch and disconnected from the movable end of the first switch and the signal line, and the fourth signal end is connected to the movable end of the second switch and disconnected from the movable end of the second switch and the signal line.
Optionally, the first connector specifically includes a fifth signal end connected to the signal sending end, a sixth signal end connected to the signal receiving end, a third switch, a fourth switch, and a controller;
wherein the controller controls the third switch and the fourth switch to turn on the fifth signal terminal and the sixth signal terminal when the first connector is not connected to the second connector; when the controller detects that the first connector is connected to the second connector, the third switch and the fourth switch are controlled to be disconnected with the fifth signal end and the sixth signal end, the third switch is controlled to connect the fifth signal end with the signal enhancement module, and the fourth switch is controlled to connect the sixth signal end with the signal enhancement module.
Optionally, the signal enhancement module specifically includes a signal driving unit connected to the second connector and a reset circuit connected to the signal driving unit;
the signal driving unit is used for performing signal compensation and signal enhancement on a signal to be transmitted.
Optionally, the signal driving unit specifically includes a pre-emphasis circuit, a de-emphasis circuit connected to the pre-emphasis circuit, and an equalizer connected to the de-emphasis circuit.
Optionally, the signal enhancement module further includes:
and the power supply module is connected with the signal driving unit.
Optionally, the power module is specifically a storage battery.
Optionally, the signal enhancement module further includes a fifth switch disposed between the power module and the signal driving unit.
Optionally, the signal driving unit specifically includes a Semtech GN2504 chip.
In order to solve the above technical problem, the present invention further provides an OpenPOWER server, including any one of the signal enhancing apparatuses described above.
The signal enhancement device provided by the invention is applied to an OpenPOWER server and comprises a first connector, a second connector detachably connected with the first connector and a signal enhancement module connected with the second connector, wherein the signal enhancement module can be detachably connected with the OpenPOWER server through the first connector fixedly arranged between a group of signal sending ends and signal receiving ends of a mainboard of the OpenPOWER server and the second connector detachably connected with the first connector, the first connector can be used as a device for conducting the signal sending ends and the signal receiving ends when not connected with the second connector, and after the first connector is connected with the second connector, the signal enhancement module can be connected between the signal sending ends and the signal receiving ends to enhance signals to be transmitted. Through the signal enhancement device provided by the invention, the second connector can be selectively accessed to a longer link to enhance the signal to be transmitted, the second connector can not be accessed to a shorter link to reduce the cost, and operation and maintenance personnel can flexibly select the number of the second connectors to control the signal on the transmission line of the OpenPOWER server mainboard to be enhanced to different degrees, so that the integrity of the finally transmitted signal is ensured to be consistent. The invention further provides an OpenPOWER server, which has the beneficial effects, and is not described herein again.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a signal enhancement device according to an embodiment of the present invention;
fig. 2(a) is a schematic connection diagram of a signal enhancement apparatus according to an embodiment of the present invention;
fig. 2(b) is a schematic connection diagram of another signal enhancement apparatus according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another signal enhancement apparatus according to an embodiment of the present invention.
Detailed Description
The core of the invention is to provide a signal enhancement device and an OpenPOWER server, which are used for reducing the signal loss of the OpenPower server and ensuring the integrity of signals.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The OpenPOWER server improves the signal transmission rate and also brings the problems of excessive signal loss and incapability of ensuring signal integrity, and the problems are more serious under the condition that a main board of the OpenPOWER server is long in link or the rear end of the OpenPOWER server is connected with OpenCAPI equipment. In the prior art, in order to solve the problem, a low-loss PCB material needs to be selected through simulation to reduce signal attenuation according to the routing length of transmission lines on a PCB, so as to ensure signal integrity. Therefore, a further problem is caused, besides that the cost of the low-loss PCB material is high, the material cannot completely avoid signal loss, when the link is long, the problem of high signal loss is still likely to be caused, in order to ensure the consistency of signals, the setting of the low-loss PCB material needs to be selected according to the link length simulation, and for OpenPOWER servers supporting OpenCAPI link topologies with different lengths, the workload is huge, and the implementation difficulty is high.
In order to provide a scheme for more effectively reducing the signal loss of the OpenPOWER server, ensuring the integrity of the signal and being convenient to implement, the invention provides the following embodiments.
Fig. 1 is a schematic structural diagram of a signal enhancement device according to an embodiment of the present invention; fig. 2(a) is a schematic connection diagram of a signal enhancement apparatus according to an embodiment of the present invention; fig. 2(b) is a schematic connection diagram of another signal enhancement apparatus according to an embodiment of the present invention.
As shown in fig. 1, applied to an OpenPOWER server, the signal enhancement apparatus includes a first connector 101, a second connector 102 detachably connected to the first connector 101, and a signal enhancement module 103 connected to the second connector 102;
the first connector 101 is fixedly disposed between a group of signal transmitting terminals 104 and a group of signal receiving terminals 105 of the OpenPOWER server motherboard, and is configured to conduct the signal transmitting terminals 104 and the signal receiving terminals 105 when the second connector 102 is not accessed, and to cut off connection between the signal transmitting terminals 104 and the signal receiving terminals 105 and access the signal enhancement module 103 between the signal transmitting terminals 104 and the signal receiving terminals 105 when the second connector 102 is accessed.
In a specific implementation, when the OpenPOWER server motherboard is produced, a plurality of first connectors 101 may be arranged at predetermined distances, and the second connector 102 is accessed according to the use condition of the backhaul link.
The second connector 102 may be fixedly connected to the signal enhancement module 103 as shown in fig. 1, or may be communicatively connected to the signal enhancement module 103 through a signal line.
The signal enhancement module 103 may specifically include a signal driving unit connected to the second connector 102 and a reset circuit connected to the signal driving unit;
the signal driving unit is used for performing signal compensation and signal enhancement on a signal to be transmitted.
Further, the signal driving unit specifically includes a pre-emphasis circuit, a de-emphasis circuit connected to the pre-emphasis circuit, and an equalizer connected to the de-emphasis circuit.
The high-frequency component of the signal to be transmitted is enhanced at the beginning end through the pre-emphasis circuit so as to compensate the overlarge attenuation of the high-frequency component in the transmission process; the amplitude of the rising edge and the amplitude of the falling edge of the signal are kept unchanged by the de-emphasis circuit, and the signals at other places are weakened, so that the swing amplitude, the height of an eye pattern, the power consumption and the EMC radiation of the signal to be transmitted are reduced; and filtering out the high-frequency crosstalk of the signal to be transmitted by an equalizer. The detailed structures and control methods of the pre-emphasis circuit, the de-emphasis circuit and the equalizer can refer to the prior art, and are not described herein again.
Optionally, the signal driving unit may also use a Semtech GN2504 chip as a core.
As shown in fig. 2(a), when the first connector 101 is not connected to the second connector 102, the signal transmitter 104 and the signal receiver 105 on the OpenPOWER server motherboard are directly connected through the signal line in the first connector 101.
As shown in fig. 2(b), when the first connector 101 is connected to the second connector 102, the signal transmitter 104 and the signal receiver 105 on the OpenPOWER server motherboard are no longer directly connected through a signal line in the first connector 101, but are respectively connected to the signal enhancement module 103.
The signal enhancement device provided by the embodiment of the invention is applied to an OpenPOWER server and comprises a first connector, a second connector detachably connected with the first connector and a signal enhancement module connected with the second connector, wherein the signal enhancement module can be detachably connected with the OpenPOWER server through the first connector fixedly arranged between a group of signal sending ends and signal receiving ends of a mainboard of the OpenPOWER server and the second connector detachably connected with the first connector, the first connector can be used as a device for conducting the signal sending ends and the signal receiving ends when not connected with the second connector, and after the first connector is connected with the second connector, the signal enhancement module can be connected between the signal sending ends and the signal receiving ends to enhance signals to be transmitted. Through the signal enhancement device provided by the invention, the second connector can be selectively accessed to a longer link to enhance the signal to be transmitted, the second connector can not be accessed to a shorter link to reduce the cost, and operation and maintenance personnel can flexibly select the number of the second connectors to control the signal on the transmission line of the OpenPOWER server mainboard to be enhanced to different degrees, so that the integrity of the finally transmitted signal is ensured to be consistent.
Fig. 3 is a schematic structural diagram of another signal enhancement apparatus according to an embodiment of the present invention. As shown in fig. 3, based on fig. 1, the first connector 101 specifically includes a first signal end 301 connected to the signal transmitting end 104, a second signal end 302 connected to the signal receiving end 105, a first switch 303 whose fixed end is connected to the first signal end 301, and a second switch 304 whose fixed end is connected to the second signal end 302; when the first connector 101 is not connected with the second connector 102, the active end of the first switch 303 is connected with the active end of the second switch 304 through a signal line;
correspondingly, the second connector 102 specifically includes a third signal terminal 305 and a fourth signal terminal 306 respectively connected to the signal enhancement module 103; when the first connector 101 is connected to the second connector 102, the third signal terminal 305 is connected to the active terminal of the first switch 303 and disconnects the active terminal of the first switch 303 from the signal line, and the fourth signal terminal 306 is connected to the active terminal of the second switch 304 and disconnects the active terminal of the second switch 304 from the signal line.
The first connector 101 and the second connector 102 can switch the connection mode of the signal transmitting end 104 and the signal receiving end 105 through a mechanical structure. In order to restore the connection between the signal transmitting terminal 104 and the signal receiving terminal 105 after the first connector 101 is connected to the second connector 102 and disconnected, springs may be provided at the movable terminal of the first switch 303 and the movable terminal of the second switch 304, respectively.
In addition to controlling the switching of the connection modes of the signal transmitting terminal 104 and the signal receiving terminal 105 through a mechanical structure, the connection modes of the signal transmitting terminal 104 and the signal receiving terminal 105 may also be switched through a circuit control structure.
On the basis of fig. 1, the first connector 101 may specifically include a fifth signal terminal connected to the signal sending terminal 104, a sixth signal terminal connected to the signal receiving terminal 105, a third switch, a fourth switch, and a controller;
when the first connector 101 is not connected with the second connector 102, the controller controls the third switch and the fourth switch to conduct the fifth signal terminal and the sixth signal terminal; when detecting that the first connector 101 is connected to the second connector 102, the controller controls the third switch and the fourth switch to switch off the connection between the fifth signal terminal and the sixth signal terminal, controls the third switch to connect the fifth signal terminal with the signal enhancement module 103, and controls the fourth switch to connect the sixth signal terminal with the signal enhancement module 103.
In a specific implementation, the first connector 101 may be provided with a detection terminal, the second connector 102 is provided with a corresponding detection terminal, when the first connector 101 is connected with the second connector 102, the detection terminal sends a connection signal to the controller, and the controller controls the third switch and the fourth switch to switch the connection mode. The third switch and the fourth switch may employ a relay.
On the basis of the above embodiment, for convenience of use, the signal enhancement module 103 may further include a power module connected to the signal driving unit, for supplying power to the signal driving unit, and no external power source is required to be accessed when the signal enhancement device is used.
The power module may specifically be a battery.
The signal enhancement module 103 may further include a fifth switch disposed between the power supply module and the signal driving unit, and configured to disconnect the power supply and the connection between the signal transmitting terminal 104 and the signal receiving terminal 105 when the signal enhancement device is put into use.
On the basis that the above detailed description describes various embodiments corresponding to the signal enhancement device, the present invention further discloses an OpenPOWER server corresponding to the signal enhancement device, where the OpenPOWER server may include the signal enhancement device described in any of the above embodiments.
Since the embodiment of the OpenPOWER server portion corresponds to the embodiment of the signal enhancement device portion, please refer to the description of the embodiment of the signal enhancement device portion for the embodiment of the OpenPOWER server portion, which is not repeated here.
The signal enhancement device and the OpenPOWER server provided by the invention are described in detail above. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A signal enhancement device is applied to an OpenPOWER server and comprises a first connector, a second connector and a signal enhancement module, wherein the second connector is detachably connected with the first connector;
the first connector is fixedly arranged between a group of signal transmitting ends and signal receiving ends of the OpenPOWER server mainboard and used for conducting the signal transmitting ends and the signal receiving ends when the second connector is not accessed, and cutting off the connection between the signal transmitting ends and the signal receiving ends and accessing the signal enhancement module between the signal transmitting ends and the signal receiving ends when the second connector is accessed.
2. The signal enhancement device of claim 1, wherein the first connector specifically comprises a first signal terminal connected to the signal transmitting terminal, a second signal terminal connected to the signal receiving terminal, a first switch having a fixed terminal connected to the first signal terminal, and a second switch having a fixed terminal connected to the second signal terminal; when the first connector is not connected with the second connector, the movable end of the first switch is connected with the movable end of the second switch through a signal line;
correspondingly, the second connector specifically comprises a third signal end and a fourth signal end which are respectively connected with the signal enhancement module; when the first connector is connected to the second connector, the third signal end is connected to the movable end of the first switch and disconnected from the movable end of the first switch and the signal line, and the fourth signal end is connected to the movable end of the second switch and disconnected from the movable end of the second switch and the signal line.
3. The signal enhancement device of claim 1, wherein the first connector specifically comprises a fifth signal terminal connected to the signal transmitting terminal, a sixth signal terminal connected to the signal receiving terminal, a third switch, a fourth switch, and a controller;
wherein the controller controls the third switch and the fourth switch to turn on the fifth signal terminal and the sixth signal terminal when the first connector is not connected to the second connector; when the controller detects that the first connector is connected to the second connector, the third switch and the fourth switch are controlled to be disconnected with the fifth signal end and the sixth signal end, the third switch is controlled to connect the fifth signal end with the signal enhancement module, and the fourth switch is controlled to connect the sixth signal end with the signal enhancement module.
4. The signal enhancement device of claim 1, wherein the signal enhancement module comprises a signal driving unit connected to the second connector and a reset circuit connected to the signal driving unit;
the signal driving unit is used for performing signal compensation and signal enhancement on a signal to be transmitted.
5. The signal enhancement device of claim 4, wherein the signal driving unit comprises a pre-emphasis circuit, a de-emphasis circuit connected to the pre-emphasis circuit, and an equalizer connected to the de-emphasis circuit.
6. The signal enhancement apparatus of claim 5, wherein the signal enhancement module further comprises:
and the power supply module is connected with the signal driving unit.
7. The signal enhancement device of claim 6, wherein the power module is embodied as a battery.
8. The signal enhancement device of claim 6, wherein the signal enhancement module further comprises a fifth switch disposed between the power supply module and the signal driving unit.
9. The signal enhancement device of claim 4, wherein the signal driving unit comprises a Semtech GN2504 chip.
10. An OpenPOWER server, comprising the signal enhancement apparatus of any one of claims 1 to 9.
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| CN201910209296.0A CN109947685B (en) | 2019-03-19 | 2019-03-19 | Signal enhancement device and OpenPOWER server |
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| CN201910209296.0A CN109947685B (en) | 2019-03-19 | 2019-03-19 | Signal enhancement device and OpenPOWER server |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9195433B2 (en) * | 2006-02-07 | 2015-11-24 | Bongiovi Acoustics Llc | In-line signal processor |
| CN201639126U (en) * | 2010-03-26 | 2010-11-17 | 张乃千 | Extended interface module provided with signal gain circuit |
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|---|---|---|---|---|
| CN202439784U (en) * | 2012-01-12 | 2012-09-19 | 董浩成 | Novel bicycle anti-theft device |
| CN106021151A (en) * | 2016-05-09 | 2016-10-12 | 浪潮电子信息产业股份有限公司 | Signal enhancing board as well as signal enhancing method and system |
| CN206115268U (en) * | 2016-06-30 | 2017-04-19 | 苏州宝时得电动工具有限公司 | Signal generating device reaches from mobile robot system |
| CN207833499U (en) * | 2017-11-29 | 2018-09-07 | 郑州云海信息技术有限公司 | A kind of Riser cards based on PCIE4.0 |
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